After seeing the intensity of the competition this year and having to repair damage from bent frames due to impacts on the field, as well as having to change out wheels from competition to competition, I decided I'd try my hand at designing a new chassis. This design is based very much off of this year KOP chassis but the side panels are all custom made. The cross-brace is the same part that AndyMark sells, and the frame is designed to fit a Mini Toughbox. The point of the design is to make it easier to change out wheels, even possibly have the side modules on the side ready for a quick change when needed. The outside plates are intended to be made of steel rather than aluminum to provide extra strength, but all of the other parts are aluminum. It isn't easy to see but there's a spacer plate between the main body of the frame and the side modules to give the bolt heads room to sit. Also, the large cylinders are just placeholders for 4" wheels. The design can easily be modified to fit larger size wheels. This was my first attempt at designing a chassis, and I'd like to hear some of your feedback.
The moral of this story is that constructive criticism is good, but only as long as you don't act like a complete idiot. - David Kelly [more] 
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